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In triangle PQR, we have angle P = 90, QR = 15, and tan R = 6 cos Q. What is PQ?

 May 15, 2021
 #1
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$6\cos Q=6\cos(90-R)=6\sin R=tan R\implies 6=\frac{1}{\cos R}\implies \cos R=6$.

 

The end is near

 May 16, 2021
 #2
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Something's fishy here...cheeky

 May 17, 2021

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